Core equipment of sulfur trioxide sulphonation unit——sulfonation reactor;

The new developments of the sulfonation technology of toluene were reviewed,several important types of sulfonation reactors were discussed and a newly developed sulfonation technology of toluene by gaseous sulfur trioxide was reported.

The Gas-liquid jet sulfonation reactor was used to sulfonate/sulfate fatty acid methyl ester (ME), linear alkyl benzene (LAB), heavy alkyl benzene (HAB), fatty alcohol (FA),fatty alcohol ethoxylate (AEO_3) and olefin (AO) with gaseous SO_3, the effect of its main parameters of reactor on sulfonated products was studied, and contrastive experiments were carried out in film reactor .

Technologies for sulfonation including using sulfur trioxide as sulfonating agent and baking process and the sulfonation equipment such as tubular sulfonator as well are briefed.

Through calculation and analytic comparison of the ma ss transfer coeffi cient of double film and multibute film sulfonation reactor,it is showed that th e decisive factor of the mass transfer coefficient is SO 3 diffusive distance, and it's the mass transfer coefficient nearly comes in accord with the actual co nditions.

The application situation and development of domestic made film sulfonation reactor with 3.

The water-soluble chiral diamine ligands are prepared by sulphonation reaction.

The sulphonation reaction in media and the crystallization process in shachongdan production have been emphasisly discussed.

Sulfonation of Polyepichlorohydrin and Sulfite with Phase Transfer Catalysis;

Application of Molecular Mechanics in study of the Sulfonation Reaction of Naphthalene Derivatives;

Studies on the Sulfonation of Hypocrellins at the 13-Position and the Reaction Mechanism;